TELECOMMUNICATIONS SYSTEM INDICATOR AND PROTECTOR

摘要

The present invention provides a telecommunications system indicator and protector (10) for indicating the working status of a telecommunications lin e (16) and of equipment (12, 14) which can be connected to the telecommunications line. The telecommunications system indicator includes connecting means whereby the telecommunications system indicator can be connected to the telecommunications line and the equipment respectively, a line testing circuit (Block B) and an equipment testing circuit (Block A). T he telecommunications system indicator further also includes a switch (18) whic h is movable between a first position wherein the telecommunications line is connected to the line testing circuit and a second position wherein the telecommunications line is connected to the equipment testing circuit as wel l as an indicator for indicating whether the telecommunications line is in working order when the switch is located in the first position, and whether the equipment is in working order when the switch is located in the second position.